Robert Sheckley was one of my favorite contributors to the SF digests in the 1950s, and when I re-discovered him in the 1970s, I found that I enjoyed his stories even more than before. A couple of years ago I was lucky enough to meet him in Dallas at ConDFW, get a few books signed, and hear him talk on a couple of panels.
I picked this up from his homepage: "Robert is in the Intensive Care Unit at Vassar Brothers Medical Center Poughkeepsie NY in critical condition after suffering from a brain aneurysm/aneurism. He underwent surgery last Thursday Nov 10th 2005. At this time it is a wait and see situation, details will be provided when available."
This morning I received an e-mail saying that Sheckley had passed away. If you haven't read his short stories, you've missed a treat. And you should do something about that.